When asking for technical help at the very least let us know the version of firmware you are running.Cliff's Calibration (Mapping) Guide is a MUST READ: http://www.vemssupport.com/forum/index.php/topic,97.0.html
What region are you in?You can wire the ECU pretty well in using the stock loom or get a loom adapter.Just noticed you are in London, are you interested in getting a loom adapter so its basically PnP or a brand new engine loom?